1Petition of Oliver Evans to the Patent Board, [ca. 1 December 1792] (Jefferson Papers)
...simple and Cheap manner By means of steam engines of his own invention of a peculiar...
2To Thomas Jefferson from Oliver Evans, 24 December 1804 (Jefferson Papers)
...printed “short description of the principles of Steam Engines” for the information of senators...
3To Thomas Jefferson from Oliver Evans, 13 December 1806 (Jefferson Papers)
...into use there one of my improved steam engines which would prove not only of great...
4To Thomas Jefferson from Oliver Evans, 9 December 1808 (Jefferson Papers)
...Boats propelled by my improved Steam Engines should have ascended the Mississippi...
5Enclosure: Oliver Evans’s Petition to the United States Congress, [by 28 December 1813] (Jefferson Papers)
...broader concerns, did extend his patent on steam engines an additional seven years beyond its...
6Oliver Evans to Thomas Jefferson, 7 January 1814 (Jefferson Papers)
...he became engrossed in designing steam engines and steam-powered land carriages. Ridiculed for...
7To James Madison from Oliver Evans, 8 March 1814 (Madison Papers)
...applying the great elastic power of Steam to Steam engines) by applying one of his engines to...